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1. 发明授权

US4628285A 3-terminal oscillating element and oscillator employing the same 失效
标题翻译： 3端振荡元件和采用它的振荡器
公开(公告)号：US4628285A
公开(公告)日：1986-12-09
申请号：US686010
申请日：1984-12-27
申请人： Hiroshi Nakatani , Jiro Inoue , Masashige Miyamori
发明人： Hiroshi Nakatani , Jiro Inoue , Masashige Miyamori
IPC分类号： H03B5/32 , H03H9/17
CPC分类号： H03B5/323
摘要： A 3-terminal oscillating element has a square plate-like piezoelectric body, first and second electrodes provided on one surface of the piezoelectric body and a common electrode provided on the other surface of the piezoelectric body. The piezoelectric body is polarized in one direction between the first and common electrodes and in the opposite direction between the second and common electrode. The 3-terminal oscillating element, when provided in place of a combination of 2-terminal oscillating element and two externally provided capacitors C.sub.1 and C.sub.2 in a Colpitts circuit, substantially satisfies the following equations: ##EQU1## wherein C.sub.01 is an electrostatic capacitance between the first electrode and the counter electrode, C.sub.02 is an electrostatic capacitance between the second electrode and the counter electrode, and n is an transformation ratio of an ideal transformer; and ##EQU2## wherein S.sub.1 and S.sub.2 are areas of first and second electrodes, respectively.
摘要翻译：三端振荡元件具有方形板状压电体，设置在压电体的一个表面上的第一和第二电极以及设置在压电体的另一表面上的公共电极。压电体在一个方向上在第一和公共电极之间并且在第二和公共电极之间的相反方向上被极化。当在Colpitts电路中提供代替2端振荡元件和两个外部提供的电容器C1和C2的组合的三端振荡元件基本上满足以下等式：其中C01是静电电容第一电极和对电极，CO 2是第二电极和对电极之间的静电电容，n是理想变压器的变比; 和，其中S1和S2分别是第一和第二电极的区域。

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